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  <meta charset="UTF-8">
  <meta name="Generator" content="EditPlus®">
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  <meta name="Description" content="">
  <title>Document</title>
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     div{
	    width:100px; height:100px;
	    margin-top:10px; background-color:red;
	 }
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   <button>确定</button>
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	     $("div").fadeToggle(1000);
	 });
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